Open AccessAnti-glare LED lamps with adjustable illumination light field
Author(s) -
YungSheng Chen,
Chung-Yi Lin,
Chun-Ming Yeh,
ChieTong Kuo,
Chih-Wei Hsu,
HsiangChen Wang
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.005183
Subject(s) - optics , glare , led lamp , stray light , light field , materials science , physics , layer (electronics) , composite material
We introduce a type of LED light-gauge steel frame lamp with an adjustable illumination light field that does not require a diffusion plate. Base on the Monte Carlo ray tracing method, this lamp has a good glare rating (GR) of 17.5 at 3050 lm. Compared with the traditional LED light-gauge steel frame lamp (without diffusion plate), the new type has low GR. The adjustability of the illumination light field could improve the zebra effect caused by the inadequate illumination light field of the lamp. Meanwhile, we adopt the retinal image analysis to discuss the influence of GR on vision. High GR could reflect stray light on the retinal image, which will reduce vision clarity and hasten the feeling of eye fatigue.